The Israeli Journal of Aquaculture - Bamidgeh 54(2), 2002
The Annual Dan Popper Symposium


Gideon Hulata*

Department of Aquaculture, Institute of Animal Science, Agricultural Research Organization, P.O.Box 6, Beit Dagan 50250, Israel


A variety of genetic technologies are currently being applied worldwide to aquacultured organisms in an effort to overcome production challenges. These include classical breeding methods (e.g. , selection, crossbreeding and hybridization), methods for gender and chromosome-set manipulations (e.g.,polyploidy, gynogenesis and androgenesis) and more modern molecular technologies (e.g., DNA markers, genomics and gene manipulation). While having great potential for speeding-up genetic improvement in aquaculture (and agriculture in general), some of the latter technologies entail social or environmental problems. Only 5-10% of the world’s aquaculture production derives from the use of genetically improved stocks, most of which were developed using classical breeding methods. The challenges for the new century are to initiate more breeding programs for currently unimproved species and to decide which modern genetic improvement strategies are necessary, beneficial and acceptable in terms of social and environmental safety.

*Tel: 972-3-9683388; fax: 972-3-9605667; e-mail: